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| clide |
 Posted: 04/20/2007 14:17 PM Post subject: |
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Donating Member
Joined: 06 Mar 2005
Posts: 790
2301.84 Spud Bux
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The limiting factor is my air supply. I built a high flow check valve into the piston and the 3-way exhaust valve has a high flow through it to minimize filling times, so if I had a high enough flow air source I could probably get a significantly faster ROF.
The video misrepresents the sound. It sounds like it is getting a lot quitter and having troubles, but I think that is just an auto sound dampening on the camcorder kicking in. Its been awhile since I fired it, but I'm pretty sure it sounds more consistent throughout all the shots in real life. I don't think I would start having any issues until below 30 psi, but I never even really bothered to try it that low. |
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| bboymatty |
| Posted: 04/23/2007 6:29 AM Post subject: |
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Staff Sergeant
Joined: 19 Feb 2006
Posts: 110
219.10 Spud Bux
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| what a fantastic design, absolutely love it to bits. great work. |
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| ALIHISGREAT |
| Posted: 09/07/2007 14:23 PM Post subject: |
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Eternal Noob
Joined: 25 Aug 2007
Posts: 1799
521.94 Spud Bux
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| awesome cannon, i like the fact you have made the valve AND pilot yourself and they are a cool design. |
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| The Kid |
| Posted: 09/29/2007 8:47 AM Post subject: |
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Staff Sergeant
Joined: 29 Sep 2007
Posts: 117
206.15 Spud Bux
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| that cannon is a work of art i never would have thought of anything like that (in fact i never think of anything i am very unoriginal) |
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| Gepard |
| Posted: 09/29/2007 8:49 AM Post subject: |
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Major
Joined: 18 Jun 2007
Posts: 351
727.71 Spud Bux
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| Please stop posting to old topics unless you have something useful to add. |
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| Hailfire753 |
| Posted: 10/06/2007 12:34 PM Post subject: |
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Captain
Joined: 28 Jun 2007
Posts: 343
44.15 Spud Bux
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Ok, well I hope this is useful...
If I were to modify these designs to fit in a sniper-rifle esque design, I would want to use it in a painball match. How would I adjust the fps the gun pounds out? Would I increase the spring tension of the loading mech, or decrease the chamber pressure?
I would want to use regulated C02, how much would it cost for an ajustable regulator and hook up? (quick disconect)
Also, with your RoF, if you pressed the trigger faster why wouldn't it increase? If there is less time in between shots, wouldn't the chamber psi only be less? As long as the loading mech supplies panitballs fast enough, wouldn't it still shoot?
Last edited by Hailfire753 on 10/06/2007 12:37 PM; edited 1 time in total |
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| VH_man |
| Posted: 10/06/2007 12:37 PM Post subject: |
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Swimmaman
Joined: 09 Dec 2006
Posts: 1846
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| you would decrease the chamber pressure....... |
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| clide |
| Posted: 10/06/2007 15:17 PM Post subject: |
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Donating Member
Joined: 06 Mar 2005
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| Yes, as VH said you would just decrease the chamber pressure to reduce the speed. Also, yes my gun was limited in ROF by the fill speed and also a bit by the fact that the trigger pull is relatively long. I probably couldn't pull it faster than about 4 RPS and it would probably be inconsistent at that speed because of the fill rate. But that could be fixed by a higher flow rate air source or maybe a on board secondary chamber that holds some air for the refill. |
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| lilazndogg940 |
| Posted: 09/27/2008 21:32 PM Post subject: Re: Semi Auto |
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Private
Joined: 27 Sep 2008
Posts: 1
6.51 Spud Bux
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| Hey so how does the piston valve body pop back. does it pop back because the pressure is realeased behind it or wat i dont get how it does it |
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| clide |
| Posted: 09/28/2008 17:43 PM Post subject: |
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Donating Member
Joined: 06 Mar 2005
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| SEAKING9006 |
| Posted: 09/29/2008 20:24 PM Post subject: |
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Brigadier General
Joined: 23 Jun 2008
Posts: 752
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| I apologize for bumping, but I'd love a video, current link is broken. |
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| clide |
| Posted: 09/29/2008 21:02 PM Post subject: |
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Donating Member
Joined: 06 Mar 2005
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| FordGtMan |
| Posted: 09/29/2008 21:06 PM Post subject: |
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Captain
Joined: 25 Oct 2007
Posts: 314
27.59 Spud Bux
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Wow, impressive video. Too bad all those damned idiots on youtube think that the whole deal was a real paintball gun as the gun wasn't showed.  |
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| chrissilvermancs |
| Posted: 03/13/2009 23:36 PM Post subject: |
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Corporal
Joined: 07 Mar 2009
Posts: 67
236.46 Spud Bux
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looks great!
want to see the video but the link is bad can you post it agin?
dose it waste a lot of air?
can your air supply keep it fireing long?
and dose it need a lot of matence? |
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| clide |
| Posted: 03/14/2009 21:18 PM Post subject: |
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Donating Member
Joined: 06 Mar 2005
Posts: 790
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Look at my last post a few posts up for the video.
It doesn't waste a ton of air, but it's not the most efficient thing either. I haven't fired it in a long time but I believe it got around 13 shots before the compressor had to kick on. So based on memory I think that would be a 5 gallon tank from 100 to 70 psi.
I haven't really fired the gun much so I can't really say about the maintenance. I would guess that it would need more maintenance than a commercial paintball gun. |
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